I don't see how a Knight of Time could use Time as a weapon. It seems very abstract unlike Space and all I can see them using are time clones

One of Caledscratch’s functions is to switch between a broken and repaired state, which could be seen as literally attacking with the flow of time on a weapon. Alternatively, ‘weaponizing Time’ may work like making someone age to strip them of their power and advantage. You’re also saying ‘just using Time Clones’ as if that’s not rad as hell too!

Time is very reminiscent of Music as well, so you could even have a Knight of Time who attacks at the Beat of the Music, using the Tempo to have a unique fighting style. Sort of like Crypt of the Necrodancer maybe.